Impurity states in multiband s-wave superconductors: analysis of iron pnictides

We examine the effect of a single, non-magnetic impurity in a multiband, extended s-wave superconductor allowing for anisotropy of the gaps on the Fermi surfaces. We derive analytic expressions for the Green's functions in the continuum and analyse the conditions for the existence of sharp impurity-induced resonant states. Underlying band structure is more relevant for the multiband than for single band case, and mismatch between the bands generically makes the formation of the impurity states less likely in the physical regime of parameters. We confirm these conclusions by numerically solving the impurity problem in a tight-binding parameterization of the bands relevant to pnictide superconductors.Comment: minor corrections, published versio

Colorado Campus Compact

The Campus Compact is a national coalition of college and university presidents who believe that higher education has a responsibility to foster in students a sense of civic responsibility. At year-end 1993, the Compact consisted of a widespread and highly diverse network of over 400 member institutions, thirteen state-level Campus Compacts, a Campus Compact Center for Community Colleges, and a Historically Black Colleges and Universities Network

Foreword: Recent Developments in Labor Law: The Ninth Annual Labor Relations Institute

The papers presented in this symposium issue were initially presented at a labor institute jointly sponsored by the Atlanta Lawyers Foundation, the Federal Bar Association, the Labor Law Section of the State Bar of Georgia and the Institute of Continuing Legal Education in Georgia. This is the ninth such institute with the first having been held in 1964 for the purpose of acquainting the practicing bar with developments and trends in the field of labor law

Europe Will Form a Momentary Union ... Eventually

While I have just shown many problems along the EC\u27s path to integration, I still feel positively about the formation of monetary union. Germany has continued to remain strong in its backing of the union and its support of it. France has even endured significant unemployment and social unrest due to its policy decisions aimed at being able to meet the convergence criteria. France and Germany have also shown cooperation in forming the union

The effects of computer-assisted language learning on English language learners with and without disabilities in an elementary school setting

The purpose of the study was to investigate the effects of the English Language Learners Instructional System (ELLIS) on oral language, written language, and reading achievement among students who are English language learners with and without disabilities. Additionally, levels of teacher satisfaction with computer-assisted language learning (CALL) and the use of ELLIS were assessed. Participants were 78 third, fourth, and fifth grade students with and without disabilities enrolled in a public elementary school. All participants were of Hispanic descent and were identified as being Non- or Limited-English Proficient based on the Language Assessment Scales (LAS) (CTB Macmillan/McGraw-Hill, 1994). Twelve of the participants were identified as having a documented disability according to the Individuals with Disabilities Education Act (2001). Participants were randomly assigned to one of three groups. Treatment Group A included students with and without disabilities and received individual instruction on the ELLIS program. Treatment Group B included students with and without disabilities and received ELLIS instruction in student pairs. The third group of students was a control group and did not receive instruction using the ELLIS program. Data were collected to answer eight research questions related to the effectiveness of the ELLIS program. The Language Assessment System Links (CTB Macmillan/McGraw Hill, 2005), an updated version of the LAS was administered to all participants at the end of the study. Scores obtained from the LAS Links were entered into SPSS and then analyzed using an ANOVA at the .05 level of significance to determine differences. Next, an ANCOVA at the .05 level of significance was used to adjust posttest scores of the experimental groups to adjust for pretest differences. Finally, qualitative data obtained from the open-ended interview with the implementing teacher were analyzed. The ANOVA and ANCOVA analyses revealed that students with disabilities who received instruction using the ELLIS program performed similarly to students with disabilities who did not receive instruction using the ELLIS program in oral language, written language, and reading achievement; and that students without disabilities who received instruction using the ELLIS program performed similarly to students without disabilities who did not receive instruction using the ELLIS program in oral language, written language, and reading achievement. Additionally, paired instruction using the ELLIS software program had similar effects on student performance as individual instruction using the ELLIS software program. However, results from the open-ended interview revealed high levels of teacher satisfaction with the ELLIS software program. Results of this research indicate that the ELLIS software program did not improve the oral language, written language, and reading achievement among students who are English language learners with and without disabilities, but further investigation of computer-assisted language learning for elementary students with and without disabilities is important

Foreword: Recent Developments in Labor Law

This symposium issue brings together a collection of papers notable for diversity of subject matter as well as for point of view. Yet all relate to what is generally referred to as our National Labor Policy

Dean\u27s Report 1977

One mark of a quality school if the leadership it produces. The University of Georgia School of Law is unequaled as a producer of Georgia\u27s leaders. In the past seventy-nine years, eight of the state\u27s governors have been Georgia law graduates. Within this same period, 28 LL.B. degree earners from the University of Georgia have served as United States representatives, and six U.S. senators in the last 100 years were Georgia law graduates. Georgia graduates comprise a majority on both the state\u27s appeals court (seven of nine judges on the Georgia Court of Appeals) and its highest court (four of seven justices on the Georgia Supreme Court). The present governor, George D. Busbee, and the state\u27s Attorney General, Arthur K. Bolton, are Georgia Law School graduates. When these state leaders were beginning their career preparations, the Georgia Law School represented an attractive option for a legal education. This is even more the case today. With a high quality program of study at reasonable cost, the school continues to be attractive to the best young people that Georgia and the region have to offer

Union Trusteeship Provisions of the Labor-Management Reporting and Disclosure Act of 1959

With the passage of the Labor-Management Reporting and Disclosure Act of 1959, Congress embarked upon a policy of substantial federal regulation of internal union affairs. Prior to this enactment, the impact of law on this area had been determined largely by state courts with only a modicum of legislative guidance. In formulating the LMRDA Congress was greatly concerned with determining where to draw the line between necessary democratic safeguards and the preservation of union self-determination. This concern was particularly evident in drafting Title III which deals with union trusteeships. While Congress framed Title III from a somewhat limited informational base, two facts about the nature of trusteeships were apparent. One was the trusteeships were among the most effective devices which responsible international officers had to insure order within their organizations. The other was that in some instances trusteeships had been used as a means of consolidating the power of corrupt union officers, plundering and dissipating the resources of local unions and preventing the growth of competing political elements within the organization. How has this legislative mandate fared with nine years of administrative and judicial experience? The purpose of this article is to survey generally the evolution of the trusteeship device, the response of the common law to it, the congressional concern with trusteeship abuses, the legislative history of the corrective legislation, and finally to analyze in a more detailed review the administrative and judicial experience with Title III

Labor Relations Policy for Public Employees: A Legal Perspective

Because approximately one-sixty of the nation\u27s nonagricultural work force are public employees and because labor strife in public employment is increasing each year, the need for thoughtful examiniation of public policy in this vital area is manifest. The purpose of this article is to provide a basic legal framework to which the labor relations posture of the public employee can be related. Hopefully this can be accomplished by focusing on two separate but related areas. One concerns the oft told story of the evolution of labor-management relations policy for the private sector, while the other deals withe the law\u27s changing role in certain aspects of public employee labor relations